I don’t think the 8TB is full. It’s just the total space @lalitk has. I do own some DSD albums that are about 2-4GB each.
I’ve gone the same route where I went from 600 to 400 vinyl about six months ago. Luckily I’ve kept my digital library well organized and am selective about the quality of the music and the quality of the file, probably at 1000 albums or less. The usability of a network player’s search and browse functions become very important in delivering a frictionless experience.